challenges in building transmission in california power association of northern california p.j....
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Challenges in Building Transmission in California
Power Association of Northern California
P.J. Martinez
VP, Engineering
Pacific Gas & Electric Company
September 8, 2009
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Pacific Gas and Electric Company - Overview
Headquarters LocationSan Francisco, CA
Service Area70,000 square miles in northern and central California
Service Area Population15 million people (or about 1 of every 20 Americans)
Distribution Customer Accounts5.1 million electric, 4.3 million gas
EmployeesApproximately 20,000
System 159,364 miles of electric transmission and distribution lines 48,198 miles of natural gas T&D pipelines 6,900 megawatts of generation, including
Diablo Canyon nuclear power plant,Helms pumped storage plant, and one of the largest hydroelectric systems in the country
Challenges and Drivers
Challenges to Building Transmission– Permitting and Siting
– Multiple Planning Processes
– Construction
Main Drivers for Transmission– Reliability
– Renewable Portfolio Standards
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Reliability
PG&E continues to strengthen and modernize its electric transmission grid.- Two-fold increase since
2004
- Replace aging Infrastructure
- Improve service reliability
- Automate operation, SCADA and improve system protection
- Modernize design and configurations
- Connect new generation and accommodate aging generation retirement
- Meet demand increase
PG&E Reliability Projects
0
100
200
300
400
500
600
700
800
2004 2005 2006 2007 2008 2009 2010
Year
$ M
illio
n
PG&E Capital Spend on Reliability Projects
Fo
reca
sted
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Renewable Portfolio Standard- CA State Impacts
-Increased Import Capability
-Lower System Losses
-Access to new renewable resources
-Improved Reliability
-CA State Challenges
-Concentration of SoCal resources
-Intermittency Issues
-Resource Planning – LGIP
-Transmission permitting
-Regional Challenges
-Increase of out of state transfers
-Need for broader coordinated planning process
-Treatment of economics, reliability, operational benefits
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Large Generator Interconnection Process (LGIP)
Transition to improved interconnection process is ongoing Results of Phase 1 of LGIP
– Assessed needed network upgrades
– 108 projects evaluated totaling 39,000 MW
– Billion in system upgrades
Key Issues– Number of projects in the process
– Security postings – CAISO stakeholders working on improvements
– Recommendations to CAISO Board on Sept. 11
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Process Challenges
Industry ability to plan, approve, and build necessary transmission.
Multiple Jurisdictions and Processes– CAISO
– MUNIs
– CPUC Permits
– CEC Permits
– WECC TEPPC
– FERC
Meeting Challenges by– Understand limitations of
existing process– Streamline process to
minimize duplication– Objective on results that
facilitate project progress
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Oregon Malin
Captain Jack
California
Gates
Diablo Midway
Tracy
Vincent
Tesla
Moss Landing Los Banos
Vaca Dixon
Round Mt
Metcalf
Olinda
Table Mt
Gregg
Bellota
PG&E collaborating on planning to develop a statewide transmission plan. Near and long term efforts include:– RETI
– CTPG
– CAISO
– TEPPC
PG&E proactively focused on transmission line projects to meet renewables targets.– Canada – Northern California
– C3ETP
– Carrizo Plains
– SCE projects in SoCal
PG&E Plan & Vision
To British Columbia
Canada - NorCal
C3ETP
Carrizo Plains8